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M2 Questions- Elements of fish nutrition

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Test sobre M2 Questions- Elements of fish nutrition, creado por Sarah Alegretti Marques Lima el 27/06/2017.
Sarah Alegretti Marques Lima
Test por Sarah Alegretti Marques Lima, actualizado hace más de 1 año
Sarah Alegretti Marques Lima
Creado por Sarah Alegretti Marques Lima hace más de 7 años
195
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Resumen del Recurso

Pregunta 1

Pregunta
According to the FAO, Fish In Fish Out is the number of tonnes of wild fish that takes to produce a tonne of farmed fish. The calculation is done according to the following formula:
Respuesta
  • FIFO = ((FM in feed%)/(FM yield from wild fish%) + (Level of FO in the feed)/(yield of FO from wild fish %))xFeed: gain ratio;
  • FIFO = ((FO in feed%)/(FM yield from wild fish%) - (Level of FM in the feed)/(yield of FO from wild fish %))xFeed: gain ratio
  • FIFO = ((FM in feed%)/(FM yield from wild fish%) + (Level of FO in the feed)/(yield of FO from wild fish %))/Feed: gain ratio
  • FIFO = ((FO in feed%)/(FO yield from wild fish%) - (Level of FM in the feed)/(yield of FO from wild fish %))xFeed: gain ratio
  • FIFO = ((FO in feed%)/(FM yield from wild fish%) +(Level of FM in the feed)/(yield of FM from wild fish %))/Feed: gain ratio

Pregunta 2

Pregunta
The target FIFO for Sparus aurata is:
Respuesta
  • 3.6
  • 4.5
  • 3.0
  • 2.9

Pregunta 3

Pregunta
The components that fill in the blanks, in the correct order, are:
Image:
Q2 (image/png)
Respuesta
  • Water, ammonia compounds, non-protein, carbohydrates, cell wall, phenolic compounds, tannins, lipids, simple, vitamins, fat soluble, and, inorganic.
  • Raw matter, ammonia compounds, non-protein, carbohydrates, cell wall, phenolic compounds, tannins, lipids, simple, vitamins, fat soluble, and, inorganic.
  • Water, nitrogenous compounds, non-protein, carbohydrates, cell wall, phenolic compounds, tannins, lipids, simple, vitamins, vitamin soluble, and, inorganic.
  • Water, nitrogenous compounds, non-protein, carbohydrates, cell wall, phenolic compounds, tannins, lipids, simple, vitamins, fat soluble, and, inorganic.
  • Water, nitrogenous compounds, non-protein, carbohydrates, cell wall, phenolic compounds, tannins, lipids, single, vitamins, vitamin soluble, and, inorganic.

Pregunta 4

Pregunta
What is the option that contains the steps missing in the blank spaces?
Image:
Q3 (image/png)
Respuesta
  • Water,kjellerup-N, NFE, and, fibre.
  • Moisture, kjellerup-N, NBE, and, Crude fibre.
  • Moisture, Kjeldahl-N, NFE, and, fibre.
  • Moisture, kjellerup-N, NFE, and, fibre.
  • Moisture, Kjeldahl-N, NFE, and, Crude fibre.

Pregunta 5

Pregunta
Feeds are composed of water and dry matter and part of it corresponds to raw materials. Corn, straw, E, iron and yeast are sources of:
Respuesta
  • Energy, fibre, vitamins, minerals and proteins.
  • Energy, vitamins, fibre, minerals and proteins.
  • Energy, fibre, minerals, vitamins and proteins.
  • Energy, fibre, vitamins, proteins and minerals.
  • Energy, proteins, vitamins, minerals and fibre.

Pregunta 6

Pregunta
There are 12 steps in aquafeed production, fill in the blanck spaces with the correct step.
Image:
Q6 (image/png)
Respuesta
  • Milling, temperature (80-180C), compression, coating (oil, vitamins, antioxidants).
  • Milling, temperature (50-150C), compression, coating (oil, vitamins, antioxidants).
  • Milling, temperature (80-180C), compression, heating (oil, vitamins, antioxidants).
  • Sieving, temperature (80-180C), compression, coating (oil, vitamins, antioxidants).
  • Sieving, temperature (50-150C), compression, coating (oil, vitamins, antioxidants).

Pregunta 7

Pregunta
Fill in the blank spaces with the schematic food metabolism steps.
Image:
Q7 (image/png)
Respuesta
  • Protein
  • Fat
  • Tissue Fluid
  • Liver
  • Muscle
  • Flesh

Pregunta 8

Pregunta
Fill in the spaces with the adequate stages of growth response to nutrient intake.
Image:
Q8 (image/png)
Respuesta
  • Threshold
  • Adequate
  • Toxic

Pregunta 9

Pregunta
Fill in the blank spaces with the correct stages of energy flow in fish.
Image:
Q9 (image/png)
Respuesta
  • Total
  • 100
  • Faecal
  • 13
  • Digestible
  • 87
  • Urinary
  • branchial
  • 12
  • Metabolic
  • Heat production
  • 5
  • Net
  • 75
  • 70
  • Growth
  • 33
  • basal
  • metabolism
  • 37

Pregunta 10

Pregunta
It is a fact that fish conversion [blank_start]efficiency[blank_end] is low in fish. There are [blank_start]three[blank_end] main reasons for that: fish are [blank_start]poikilothermic[blank_end] and require [blank_start]low[blank_end] energy for maintenance, water environment require [blank_start]less[blank_end] energy to live in, and, the use of [blank_start]fat[blank_end] in the feed that has [blank_start]more[blank_end] energy density compared to carbohydrates fed to land animals.
Respuesta
  • efficiency
  • three
  • poikilothermic
  • low
  • less
  • fat
  • more

Pregunta 11

Pregunta
The fee conversion efficiency for salmon, sea bass and red sea bream are, respectively, 1.1, 1.3 and 2.
Respuesta
  • True
  • False

Pregunta 12

Pregunta
Proteins are required for the supply of [blank_start]essential amino acids[blank_end] and [blank_start]nitrogen[blank_end] for synthesis of non-essential amino acids.
Respuesta
  • essential amino acids
  • nitrogen

Pregunta 13

Pregunta
Protein requirement varies between different species of fish. The protein content in feed for best growth of Chinook salmon, Gilthead bream and Red sea bream, respectively, are: 400, 400 and 500.
Respuesta
  • True
  • False

Pregunta 14

Pregunta
The roles of lipids in fish nutrition are energy supply, structure, precursors and signaling anomg others.
Respuesta
  • True
  • False

Pregunta 15

Pregunta
Lipids include fats, waxes, sterols, water-soluble vitamins (such as vitamins A, D, E and K), monoglycerides, diglycerides, triglycerides, phospholipids, and others.
Respuesta
  • True
  • False

Pregunta 16

Pregunta
Triglycerides are important energy source and storages of fatty acids.
Respuesta
  • True
  • False

Pregunta 17

Pregunta
Phospholypids are elements present in the structure of membranes.
Respuesta
  • True
  • False

Pregunta 18

Pregunta
Fish can not synthesize fatty acids of the series w-3 and w-6 although they are not essential for many functions.
Respuesta
  • True
  • False

Pregunta 19

Pregunta
The essential fatty acids for freshwater fish are alpha linolenic (18: [blank_start]3w3[blank_end]) and alpha- linoleic (18: [blank_start]2w6[blank_end]).
Respuesta
  • 3w3
  • 2w6

Pregunta 20

Pregunta
The essential fatty acids for Marine fish are 20: 5w3 and 22: 6w6
Respuesta
  • True
  • False

Pregunta 21

Pregunta
The fatty acid requirement for coho salmon is [blank_start]1-2.5[blank_end]% of linolenic acid while for [blank_start]red sea bream[blank_end] is 0.5% EicosaPentaenoicAcid (EPA) and DocosaHexaenoicAcid (DHA).
Respuesta
  • 1-2.5
  • red sea bream

Pregunta 22

Pregunta
What is the percentage of fish oil that can be replaced without affecting the fish growth?
Respuesta
  • 60%
  • 50%
  • 80%
  • 30%
  • 40%

Pregunta 23

Pregunta
Feed fatty acid composition reflects [blank_start]body[blank_end] composition because there is a tendency of [blank_start]conservation[blank_end] of [blank_start]Highly Unsaturated Fatty Acid[blank_end].
Respuesta
  • body
  • conservation
  • Highly Unsaturated Fatty Acid

Pregunta 24

Pregunta
The optimum dietary lipid levels in diets for Sparus aurata and Pagrus pagrus are, respectively, 15% and 9%.
Respuesta
  • True
  • False

Pregunta 25

Pregunta
Which alternative on carbohydrate id correct?
Respuesta
  • They represent an expensive valuable source of dietary energy for non-carnivorous fish and shrimp.
  • Their careful use in food can boost the degradation of protein.
  • Digestability depends on molecule complexity (gelatinized starch < dextrin < glucose)
  • Carnivores fish utilise carbs better than omnivorous fish.
  • Temperature affects carbohydrates utilization by fish through the action of vitamins

Pregunta 26

Pregunta
If it is desired to increase the palatability of the feed, which element would be recommended to increase?
Respuesta
  • Vitamin
  • Protein
  • Carbohydrates
  • Minerals
  • Water

Pregunta 27

Pregunta
The metabolism of glucose in fish can be affected by carbohydrate soure, feeding rate and macro-nutrient balance.
Respuesta
  • True
  • False

Pregunta 28

Pregunta
Check the boxes of the alternatives that are correct or true about carbohydrates.
Respuesta
  • Starch is the main carbohydrate used in aquafeeds.
  • Cooking of starch during palletization or extrusion, greatly improves its digestibility by the fish.
  • Carbohydrates represent only a secondary energy source for fish.
  • Fish have little ability to use carbohydrates and to regulate metabolism.
  • Some quantity of starch is required for the feed to obtain suitable physical characteristics.

Pregunta 29

Pregunta
There are 4 fat-soluble and 11 water soluble vitamins in the fish body.
Respuesta
  • True
  • False

Pregunta 30

Pregunta
Which of the alternatives are correct?
Respuesta
  • Vitamin requirements are quantified in young fast growing fish.
  • Quantitative vitamin requirements may depend on feed consumption, presence of other nutrients and fish size.
  • Vitamin A is used for the synthesis of rhodopsin.
  • Vitamin A exists in three different forms, alcohol (retinol), aldehyde (retinal) and acid (retinoic acid).
  • All the above.

Pregunta 31

Pregunta
Check the alternatives about vitamin D that are correct?
Respuesta
  • Vitamin D might cause skeletal deformities in larvae.
  • Vitamin D enhances the absorption of calcium and phosphorus .
  • There are 8 types fo vitamine D
  • Vitamine D is required for reproduction

Pregunta 32

Pregunta
What is the name of the vitamin that exists in 8 forms, it's required for reproduction and has antioxidant action?
Respuesta
  • A
  • C
  • D
  • E
  • Fat soluble vitamin

Pregunta 33

Pregunta
What is the correct alternative regarding Ascorbic Acid?
Respuesta
  • It has antioxidant action.
  • It is necessary to create collagen.
  • It is added to feed in large quantities (1g/kg).
  • All the above.
  • None of the above.

Pregunta 34

Pregunta
Fat soluble vitamins are absorbed together with [blank_start]fat[blank_end] and stored in [blank_start]tissues[blank_end] if their intake [blank_start]exceeds[blank_end] requirements, and therefore, are difficult to be quantified. Nonetheless, their presence in feed need to be moderated since [blank_start]hypervitaminosis[blank_end] may be toxic.
Respuesta
  • fat
  • tissues
  • exceeds
  • hypervitaminosis

Pregunta 35

Pregunta
Minerals can be classified as basic elements, macro elements, and, microelements. Two correct examples of each category would be:
Respuesta
  • Carbon and Hydrogen; Calcium and Magnesium; Chromium and cobalt.
  • Carbon and Hydrogen; Copper and fluorine; potassium and chlorine;
  • Carbon and oxygen; sodium and selenium; potassium and zinc.
  • Oxygen and nitrogen; calcium and zinc; magnesium and iron,

Pregunta 36

Pregunta
Which of these affirmations on minerals are correct?
Respuesta
  • They are required for different functions (structural bones, catalytic enzymes) and osmoregultation.
  • Fish acquire metals both from feed as well from the environment.
  • Carbon, magnesium and molybdenum are all minerals that fish can obtain through feed.
  • All of the above.
  • None of the above.

Pregunta 37

Pregunta
Fill in the blank space with the correct information on mineral requirements of fish.
Image:
Q37 (image/png)
Respuesta
  • Calcium
  • 9.000
  • Sodium
  • 6.000

Pregunta 38

Pregunta
Fill in the blank spaces with the correct characteristics of feed composition.
Image:
Q39 (image/png)
Respuesta
  • Balanced
  • Easily digested
  • Stable in water
  • Minimize
  • Waste
  • raw
  • materials

Pregunta 39

Pregunta
Nutritional [blank_start]genomics[blank_end]: study on the influence of feed on [blank_start]genes[blank_end] and how [blank_start]genetic[blank_end] differences affect the [blank_start]behavior[blank_end] of fish response to [blank_start]nutrients[blank_end].
Respuesta
  • genomics
  • genes
  • behavior
  • genetic
  • nutrients

Pregunta 40

Pregunta
Fill in the blank spaces with the correct nutrition genomics steps.
Image:
Q40 (image/png)
Respuesta
  • DNA
  • Translation
  • Metabolites
  • Epigenetics

Pregunta 41

Pregunta
Do you love seing these words or not?
Image:
End (image/png)
Respuesta
  • Yes, Oui, Sí, Naí..
  • NO :(

Pregunta 42

Pregunta
FILL IN THE BLANK SPACES WITH THE CORRECT ANSWERS REGARDING CARBOHYDRATES.
Image:
Q51 (image/png)
Respuesta
  • wall
  • Oligosaccharides
  • Starch
  • Cell
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